"""E2E tests for the article index page."""

from __future__ import annotations

import pytest
from playwright.sync_api import Page, expect


@pytest.mark.e2e
def test_article_index_loads(page: Page, base_url: str) -> None:
    page.goto(f"{base_url}/articles/", wait_until="networkidle")
    expect(page.get_by_role("heading", level=1)).to_be_visible()
    # At least one article card must be present after seeding
    expect(page.locator("main article").first).to_be_visible()


@pytest.mark.e2e
def test_tag_filter_shows_tagged_articles(page: Page, base_url: str) -> None:
    page.goto(f"{base_url}/articles/", wait_until="networkidle")
    # The seeded "AI Tools" tag link must be present
    tag_link = page.get_by_role("link", name="AI Tools")
    expect(tag_link).to_be_visible()
    tag_link.click()
    page.wait_for_load_state("networkidle")

    # URL should now contain ?tag=ai-tools
    assert "tag=ai-tools" in page.url

    # The tagged article must appear; no-tag articles may be absent
    expect(page.get_by_text("Tagged Article")).to_be_visible()


@pytest.mark.e2e
def test_all_tag_clears_filter(page: Page, base_url: str) -> None:
    # Start with the tag filter applied
    page.goto(f"{base_url}/articles/?tag=ai-tools", wait_until="networkidle")

    # Clicking "All" should return to unfiltered list
    page.get_by_role("link", name="All").click()
    page.wait_for_load_state("networkidle")
    assert "tag=" not in page.url
    # All seeded articles should now be visible
    expect(page.locator("main article").first).to_be_visible()


@pytest.mark.e2e
def test_article_card_navigates_to_detail(page: Page, base_url: str) -> None:
    page.goto(f"{base_url}/articles/", wait_until="networkidle")
    first_link = page.locator("main article a").first
    expect(first_link).to_be_visible()

    href = first_link.get_attribute("href")
    assert href, "Article card must have an href"

    first_link.click()
    page.wait_for_load_state("networkidle")

    # We should be on an article detail page
    expect(page.get_by_role("heading", level=1)).to_be_visible()